WAI 17939N Starter

Starter for Jeep Commander and Grand Cherokee

WAI 17939N is a new starter built for direct replacement in select Jeep applications. It uses a permanent magnet gear reduction design with clockwise rotation, a 10-tooth drive, and flange mounting for the specified fitments.

Key Features

• Part number: 17939N
• 12V starter for automotive charging and starting systems
• Permanent magnet gear reduction design
• 1.2 kW power rating
• Clockwise (right) rotation
• 10-tooth drive
• Flange mount configuration
• 100% new construction, not remanufactured
• Fits 2006-2010 Jeep Commander and 2005-2010 Jeep Grand Cherokee

Detailed Description

WAI 17939N is engineered to deliver the amp output needed for modern vehicle starting demands. Built as a new unit with proprietary components and manufacturing processes, this starter is specified for Jeep Commander and Jeep Grand Cherokee models across the listed years. If you are searching for a Jeep Commander starter or a Jeep Grand Cherokee starter replacement, 17939N provides the correct 12V, clockwise-rotation, flange-mount configuration for the application.

This part cross-references Mopar 56044734AA for the same application.

What It Helps Solve

• Slow or inconsistent engine cranking
• No-start conditions caused by starter failure
• Grinding or improper engagement at the flywheel
• Electrical starting issues related to worn internal starter components
• Replacement needs for a direct-fit Jeep Commander or Jeep Grand Cherokee starter

Installation Notes and Tips

Verify the vehicle’s year, engine configuration, and starter mounting style before installation. Confirm clockwise rotation, 10-tooth drive count, and flange mount alignment against the original unit. For best results, inspect battery condition, cable connections, and charging system output during replacement.

Quality Assurance

WAI builds this starter as a 100% new unit rather than a remanufactured assembly. The brand states that proprietary components and processes are used to support service life and performance in demanding starting-system applications.